12010020209987 has 2 divisors, whose sum is σ = 12010020209988. Its totient is φ = 12010020209986.

The previous prime is 12010020209981. The next prime is 12010020209989. The reversal of 12010020209987 is 78990202001021.

12010020209987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12010020209987 - 2¹² = 12010020205891 is a prime.

Together with 12010020209989, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12010020209981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005010104993 + 6005010104994.

It is an arithmetic number, because the mean of its divisors is an integer number (6005010104994).

Almost surely, 2^{12010020209987} is an apocalyptic number.

12010020209987 is a deficient number, since it is larger than the sum of its proper divisors (1).

12010020209987 is an equidigital number, since it uses as much as digits as its factorization.

12010020209987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 41.

The spelling of 12010020209987 in words is "twelve trillion, ten billion, twenty million, two hundred nine thousand, nine hundred eighty-seven".